Product category:
Springs, dampers, latches, locks and small components
News Release from: Rencol Tolerance Rings | Subject: Power Rings
Edited by the Engineeringtalk Editorial
Team on 11 December 2002
Tolerance rings reduce automotive
break-in damage
Developments in fastening technology are making it harder for would-be thieves to damage vehicles and reducing the cost of repairs following attempted break-ins.
Developments in fastening technology are making it harder for would-be thieves to damage vehicles and reducing the cost of repairs following attempted break-ins Most modern cars incorporate a torque overload device within the steering column to prevent damage in the event of the column lock being forced
This article was originally published on Engineeringtalk on 25 Jul 2008 at 8.00am (UK)
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Simpler mounting for sensors
The key to getting the best out of automotive sensors is all in the mounting, says Chris Needes, Automotive Product Manager at Saint-Gobain Performance Plastics Rencol.
This often takes the form of a tolerance ring, designed to allow slippage when normal operating forces are exceeded and to continue to provide a robust interference fit once any abnormal stress is removed.
The introduction of 'Power Ring' technology, with modified high performance waveforms, combined with the availability of dry lubricated rings now makes it possible to engineer further reduced torque ranges.
Power Rings, designed by Rencol Tolerance Rings, have modified root and crest radii on the waveforms which locate against the mating surfaces.
These generate higher radial forces and increased nominal torque, whilst modified root radii result in an improved bearing surface and a reduced performance range.
During manufacture the addition of a dry lubricant coating further enhances performance, giving improved wear resistance.
According to Rencol, this ring design/lubrication combination enables torque ranges to be controlled within as little as 30Nm after repeated slip cycles, compared with about 70Nm for more traditional ring designs.
The resultant increased long-term performance means attempted break-ins are less likely to demand costly steering column repairs. Request a free brochure from Rencol Tolerance Rings ...
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